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libvirt/m4/virt-loader-nvram.m4
Michal Privoznik 75597f022a qemu: Warn verbosely if using old loader:nvram pairs
There are two ways for specifying loader:nvram pairs:

  1) --with-loader-nvram configure option
  2) nvram variable in qemu.conf

Since we have FW descriptors, using this old style is
discouraged, but not as strong as one would expect. Produce more
warnings:

  1) produce a warning if somebody tries the configure option
  2) produce a warning if somebody sets nvram variable and at
     least on FW descriptor was found

The reason for producing warning in case 1) is that package
maintainers, who set the configure option in the first place
should start moving towards FW descriptors and abandon the
configure option. After all, the warning is printed into config
output only in this case.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1763477

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-11-12 08:34:37 +01:00

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dnl The loader:nvram list check
dnl
dnl Copyright (C) 2016 Red Hat, Inc.
dnl
dnl This library is free software; you can redistribute it and/or
dnl modify it under the terms of the GNU Lesser General Public
dnl License as published by the Free Software Foundation; either
dnl version 2.1 of the License, or (at your option) any later version.
dnl
dnl This library is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl Lesser General Public License for more details.
dnl
dnl You should have received a copy of the GNU Lesser General Public
dnl License along with this library. If not, see
dnl <http://www.gnu.org/licenses/>.
dnl
AC_DEFUN([LIBVIRT_ARG_LOADER_NVRAM], [
LIBVIRT_ARG_WITH([LOADER_NVRAM],
[Pass list of pairs of <loader>:<nvram> paths.
Both pairs and list items are separated by a colon.],
[''])
])
AC_DEFUN([LIBVIRT_CHECK_LOADER_NVRAM], [
if test "x$with_loader_nvram" != "xno" && \
test "x$with_loader_nvram" != "x" ; then
l=$(echo $with_loader_nvram | tr ':' '\n' | wc -l)
if test $(expr $l % 2) -ne 0 ; then
AC_MSG_ERROR([Malformed --with-loader-nvram argument])
elif test $l -gt 0 ; then
AC_MSG_WARN([Note that --with-loader-nvram is obsolete and will be removed soon])
fi
AC_DEFINE_UNQUOTED([DEFAULT_LOADER_NVRAM], ["$with_loader_nvram"],
[List of loader:nvram pairs])
fi
])
AC_DEFUN([LIBVIRT_RESULT_LOADER_NVRAM], [
if test "x$with_loader_nvram" != "xno" && \
test "x$with_loader_nvram" != "x" ; then
LIBVIRT_RESULT([Loader/NVRAM], [$with_loader_nvram],
[!!! Using this configure option is strongly discouraged !!!])
else
LIBVIRT_RESULT([Loader/NVRAM], [$with_loader_nvram])
fi
])